Shackling Effect Induced Property Differences in Metallo-Supramolecular Polymers

Zhikai Li^†, Jiali Gu^†, Shengli Qi^‡, Dezhen Wu^‡, Lingfeng Gao^†, Ze Chen^†, Jun Guo^§, Xiaohong Li^†, Yong Wang^†, Xiaoming Yang^†, and Yingfeng Tu^*†（屠迎锋）

^† Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China

^‡ State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China

^§ Testing and Analysis Center, Soochow University, Suzhou 215123, China

J. Am. Chem. Soc., 2017, 139 (41), 14364--14367

We demonstrate here the synthesis of a novel class of metallo-supramolecular polymers with shackled structure, via the coordination of cyclic di(bis-terpyridine-triphenyl ether ester) ligands with ruthenium(II) ions. The constraint from the ring topology via the shackling of ligands provides novel properties to these metallo-supramolecular polymers, including the formation of dendritic crystals, red-shift of absorption bands in the UV–vis spectra from interchain charge-transfer transitions, and a typical flash-type memory behavior.

链接：http://pubs.acs.org/doi/10.1021/jacs.7b07965